Autumn planting: 20% off all plants and bulbs | Shop now

15% off indoor pots | Shop now

Autumn planting: 20% off all plants and bulbs | Shop now

15% off indoor pots | Shop now

Autumn planting: 20% off all plants and bulbs | Shop now

15% off indoor pots | Shop now

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Plants that Flower in September

The heat may be starting to fade, but that does not mean the colour should. Keep it fresh with asters, phlox and late-flowering anemones.

By type
Facing
How much sun
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Special conditions
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Evergreen / deciduous
Fragrance
Attractive to wildlife
Quick growing
Eventual size
Special features
Indoor plants by room
Bulb planting time
Bulb divisions
Bedding planting time
Chelsea plant of year
Sowing month inside or protected
Sowing month outside
Vegetable harvesting month
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Multibuy packs
Ready made borders
Planting combinations
Hardy
Leaf colour
Ground cover
Position
Shape
Soil moisture
Used at Chelsea
Kitchen garden planting guidelines
Sort by lowest price
Available items
Showing Flowering month : September clear all
945 items
Centaurea cyanus Classic Fantastic

20% off

Centaurea cyanus 'Classic Fantastic'
£2.99 £2.39
approx 100 seeds In stock (shipped within 2-3 working days)
Lathyrus odoratus Top Hat

20% off

Lathyrus odoratus 'Top Hat'
£2.99 £2.39
approx 20 seeds In stock (shipped within 2-3 working days)
Lathyrus odoratus Beaujolais

20% off

Lathyrus odoratus 'Beaujolais'
£2.39 - £11.18
approx 20 seeds In stock (shipped within 2-3 working days)
9cm pot | 5 - 7 seedlings available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
1 star 1 star 1 star 1 star 1 star 5.0 5 2
Campanula trachelium

20% off

Campanula trachelium
£2.99 £2.39
approx 150 seeds In stock (shipped within 2-3 working days)
Amaranthus caudatus Cascade Green

20% off

Amaranthus caudatus 'Cascade Green'
£2.99 £2.39
approx 2200 seeds In stock (shipped within 2-3 working days)
Cosmos bipinnatus Sensation Pinkie (Sensation Series)

20% off

Cosmos bipinnatus 'Sensation Pinkie' (Sensation Series)
£2.99 £2.39
approx 100 seeds In stock (shipped within 2-3 working days)
Centaurea nigra

20% off

Centaurea nigra
£2.39 - £27.99
approx 20 seeds In stock (shipped within 2-3 working days)
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 5
Borago officinalis Alba

20% off

borage - white borage
£2.99 £2.39
approx 50 seeds In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 2
Consolida regalis QIS Dark Blue

20% off

Consolida regalis 'QIS Dark Blue'
£2.99 £2.39
approx 200 seeds In stock (shipped within 2-3 working days)
Anthemis arvensis

20% off

Anthemis arvensis
£2.99 £2.39
approx 100 seeds In stock (shipped within 2-3 working days)
Verbena rigida Santos

20% off

Verbena rigida 'Santos'
£2.39 - £15.99
approx 40 seeds In stock (shipped within 2-3 working days)
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
Lepidium sativum

20% off

Lepidium sativum
£2.99 £2.39
approx 4500 seeds In stock (shipped within 2-3 working days)
Cosmos bipinnatus Candy Stripe

20% off

Cosmos bipinnatus 'Candy Stripe'
£2.99 £2.39
approx 100 seeds In stock (shipped within 2-3 working days)
Nepeta cataria

20% off

catnip / Nepeta cataria
£2.39 - £12.78
approx 150 seeds In stock (shipped within 2-3 working days)
9cm pot available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Lathyrus odoratus Daphne

20% off

Lathyrus odoratus 'Daphne'
£2.39 - £11.18
approx 20 seeds In stock (shipped within 2-3 working days)
9cm pot | 5 - 7 seedlings available to order from autumn
2 + 1 FREE 9cm pots available to order from autumn
Tropaeolum majus Red Troika

20% off

nasturtium - Tropaeolum majus 'Red Troika'
£2.99 £2.39
approx 25 seeds In stock (shipped within 2-3 working days)
1 star 1 star 1 star 1 star 1 star 5.0 5 1
Achillea millefolium

20% off

Achillea millefolium
£2.39 - £27.99
9cm pot In stock (shipped within 2-3 working days)
3 × 9cm pots In stock (shipped within 2-3 working days)
6 × 9cm pots In stock (shipped within 2-3 working days)
approx 400 seeds available to order from autumn
Cosmos sulphureus Bright Lights mixed

20% off

Cosmos sulphureus 'Bright Lights mixed'
£2.99 £2.39
approx 100 seeds In stock (shipped within 2-3 working days)
Nicotiana Whisper Mixed F1

20% off

Nicotiana 'Whisper Mixed' F1
£2.39 - £29.59
approx 70 seeds In stock (shipped within 2-3 working days)
40 + 20 FREE seedlings sold out
1 star 1 star 1 star 1 star 1 star 5.0 5 3
Papaver rhoeas Amazing Grey

20% off

Papaver rhoeas 'Amazing Grey'
£2.39 - £19.99
approx 250 seeds In stock (shipped within 2-3 working days)
9cm pot available to order from autumn
3 × 9cm pots available to order from autumn
0.5 star 1 star 1 star 1 star 1 star 4.5 5 2
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